source: trunk/FACT++/src/Readline.h@ 10252

Last change on this file since 10252 was 10183, checked in by tbretz, 10 years ago
New import.
File size: 3.6 KB
Line 
1#ifndef FACT_Readline
2#define FACT_Readline
3
4#include <string>
5#include <vector>
6
7class Readline
8{
9public:
10 static std::string TrimSpaces(const char *buf);
11
12protected:
13 /// A pointer to the unique instance of Readline to let the static
14 /// functions used as callback for readline call member function
15 /// with an object. This makes overwriting easier.
16 static Readline *This;
17
18private:
19 std::string fName; /// Filename for the history file compiled in the constructor
20 int fMaxLines; /// Maximum number of lines in the history file
21
22 std::string fLastLine; /// Last line adde to history
23
24 int fLine;
25
26 // Static member function which are used to adapt readline to ncurses
27 static int rl_ncurses_getc(FILE *);
28 static int rl_ncurses_startup();
29 static void rl_ncurses_redisplay();
30 static int rl_ncurses_event_hook();
31 static void rl_ncurses_completion_display(char **matches, int num, int max);
32 static char **rl_ncurses_completion_function(const char *text, int start, int end);
33 static char *CompleteImp(const char* text, int state);
34
35
36protected:
37 // The non static implementations of the callback funtions above
38 virtual int Getc(FILE *);
39 virtual void Startup();
40 virtual void EventHook();
41 virtual void Shutdown(const char *buf);
42 virtual void Redisplay();
43 virtual void CompletionDisplay(char **matches, int num, int max);
44
45 // Functions dealing with auto completion
46 virtual char *Complete(const char* text, int state);
47 virtual char **Completion(const char *text, int start, int end);
48
49 /// Pointer to a list of possible matched for auto-completion
50 const std::vector<std::string> *fCompletion;
51 void SetCompletion(const std::vector<std::string> *v) { fCompletion = v; }
52 char **Complete(const std::vector<std::string> &v, const char *text);
53
54public:
55 Readline(const char *prgname);
56 ~Readline();
57
58 // Access to readline
59 void BindKeySequence(const char *seq, int (*func)(int, int));
60
61 static bool DumpVariables();
62 static bool DumpFunctions();
63 static bool DumpFunmap();
64 static bool DumpHistory();
65
66 virtual bool PrintGeneralHelp();
67 virtual bool PrintCommands();
68 virtual bool PrintKeyBindings();
69
70 // History functions
71 std::string GetName() const { return fName; }
72
73 void AddToHistory(const std::string &str, bool skip=true);
74 static bool ClearHistory();
75 std::vector<const char*> GetHistory() const;
76
77 void SetMaxSize(int lines) { fMaxLines = lines; }
78
79 // Prompting
80 void UpdatePrompt(const std::string &prompt) const;
81 void UpdatePrompt() const { UpdatePrompt(GetUpdatePrompt()); }
82
83 virtual bool Process(const std::string &str);
84 virtual std::string GetUpdatePrompt() const { return ""; }
85 virtual bool PromptEOF(std::string &str);
86 virtual std::string Prompt(const std::string &prompt);
87 virtual void Run(const char *prompt=0);
88
89 int GetLine() const { return fLine; }
90 virtual std::string GetLinePrompt() const;
91
92 // Helper
93 static char *Compare(const std::string &str, const std::string &txt);
94 static char **CompletionMatches(const char *text, char *(*func)(const char*, int));
95
96 // I/O Streams
97 static FILE *SetStreamOut(FILE *f);
98 static FILE *SetStreamIn(FILE *f);
99
100 // Other global readline variables
101 static std::string GetPrompt();
102 static std::string GetBuffer();
103 static int GetAbsCursor();
104 static int GetCursor();
105 static int GetBufferLength();
106 static int GetLineLength();
107
108 // Screen size
109 static void Resize();
110 static void Resize(int w, int h);
111 int GetCols() const;
112 int GetRows() const;
113
114};
115
116#endif
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